Biotechnological remediation of arsenate from aqueous solution using a novel bacterial strain: Isotherm, kinetics and thermodynamic studies

  • Arezoo Dadrasnia
  • Mohammed Maikudi Usman
  • Zaed Abutawila
  • Rahmat Omar
  • Salmah IsmailEmail author
  • Rosazlin Abdullah
Research Article


Arsenic is a global environmental contaminant that imposes a big health threat which requires an immediate attention to clean-up the contaminated areas. This study examined the biosorption ability of a novel Bacillus strain for the removal of arsenate (pentavalent arsenic) from aqueous solution. The optimum biosorption condition was studied as a function of biomass dosage, contact time and pH. Dubinin-Radushkevich (D-R), Freundlich, and Langmuir models were applied in describing the biosorption isotherm. The maximal biosorption capacity (92%) was obtained at 25 °C, biomass concentration 2000 mg/L at pH value of 4 and contact period of 50 min. Strain 139SI act as an admirable host to the arsenate. Thermodynamic assessment (ΔG0, ΔH0, and ΔS0) also suggested the chemisorption and feasible process of As(V) biosorption. The reuse study illustrated the highest recovery of 93% using 1 M HCl, and a decrease of 25% in recovery of As(V) ions after 10 times desorption process.


Arsenate Bacillus salmalaya strain 139SI Biodegradation Water pollution 



The authors are very grateful to the chief editor and the reviewers of this article for their valuable contribution. The authors would like to acknowledge the support of the Agro Premier Biotech Sdn Bhd and University of Malaya Research Program (UMRP) with grant number of RP023A-14AFR.

Compliance with ethical standards

Ethics approval and consent to participate

Not applicable.

Consent for publication

Not applicable.

Conflict of interests

The authors declare that they have no competing interests.


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Institute of Research Management and Services, Deputy Vice Chancellor (Research & Innovation) OfficeUniversity of MalayaKuala LumpurMalaysia
  2. 2.Institute of Biological Sciences, Faculty of ScienceUniversity of MalayaKuala LumpurMalaysia
  3. 3.Department of Biotechnology, School of Life SciencesModibbo Adama University of TechnologyYolaNigeria
  4. 4.Department of Biology, Faculty of ScienceAl-Azhar UniversityGazaPalestine
  5. 5.Agro Premier Biotech Sdn BhdKuala LumpurMalaysia

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